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Finding the Fourth Proportional to 193,656.34, 290,418.63 and 73,684.81

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Solution

The fourth proportional to 193,656.34, 290,418.63 and 73,684.81 is: 110,502.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,656.34 : 290,418.63 = 73,684.81 : x
  2. Step 2: Convert to fraction form
    193,656.34/290,418.63 = 73,684.81/x
  3. Step 3: Cross multiply
    193,656.34x = 290,418.63 × 73,684.81
  4. Step 4: Simplify right side
    193,656.34x = 21,399,441,572.01
  5. Step 5: Solve for x
    x = 21,399,441,572.01/193,656.34
  6. Step 6: Final answer
    x = 110,502.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.